Stopper



May 1, 1923. 1,453,601 7 M. w. POWELL STOPPER Fi1ed Oct. 22, 1921 ammntom lmwu ' 3 M- Wj Patented May I, 1923.

MILTON W. POWELL, 0F BALTIMORE, MARYLAND.

STOPPER.

Application filed October 22, 1921.

To all whom it may concern.-

Be it known that MIIJION W. Pownnn, citizen of the United States, residing at Baltimore. State of Maryland, has invented cer tain new and useful Improvements in Stoppers, of which the following is a specification.

This invention relates to bottle stoppers, and has as an object the provision of a stopper made of a single layer of disk-shaped material, which may be readily removed by use of any convenient, moderately sharp instrument. Stoppers for milk bottles in common use are made of a paraflin pasteboard of several layers and which is exceedingly tough material. only with difficulty by such instruments as are at hand in the kitchen, such as a fork, ice pick or the like. The provision of the present invention makes it possible to pierce a disk stopper easily and quickly by the use of a fork or other instrument usually found in a kitchen.

Another object of the invention is to provide,a single layer disc stopper having one or more weakened places by forming depressions in the material so that an instrument may readily pierce the disk by being forced through these weakened portions to remove the stopper.

An illustrative embodiment of the invention is shown in the accompanying drawings, in which- Fig. 1 is a plan view of a bottle with the stopper in place;

Fig. 2 is a detail vertical section on line 22 of Fig. 1, and

Fig. 3 is a perspective view of a stopper before use.

The bottle 10 is shown as provided with a shoulder 11, upon which the stopper is adapted to seat and an up-standing lip 12 having a re-entrant angle at 13 where it oins the shoulder, all of which is the usual structure in this class of devices. The stopper 14 is made of paraflined paste board as is usual.

To enable a not very sharp instrument to readily pierce the material of the stopper 14 This material is pierced Serial No. 509,633.

places, upon the stopper, for its removal, the

points of weakness are preferably considerably removed from the center of the stopper.

A convenient location of the points of weakness is that shown, upon the circumference of the circle concentric with the stopper. The depressions which are caused as a means of weakening the material are not so formed as to cause a perforationin the stopper which could cause leakage.

The depressions may be readily formed by providing perforations on the die which stamps the stopper from the stock, in a well understood manner which forms no part of the resent invention.

inor changes may be made in the physical embodiment of the invention without departing from its spirit.

Having described my invention what I claim as new and desire to secure by Letters Patent is:

1. A bottle stopper comprising a layer of disk-shaped material having a recess struck therefrom and without rupturing the surface thereof to provide a point of less thick ness of material adapted to be readily pierced by an instrument to facilitate the removal of the disk from the bottle.

2. A bottle stopper comprising a layer of disk-shaped material having a recess struck therefrom and Without rupturing the surface thereof, the bottom of said recess providing a point of less thickness of material and the surrounding Wall thereof an abutment adapted to receive and guide the end of an instrument adapted to enter said recess and pierce the bottom thereof to facilitate the removal of the disk from the bottle.

In testimony whereof I hereunto afiix my signature.

MILTON W. POWELL. 

